Home / 215,935.56-297,984.66-120,440.10

Finding the Fourth Proportional to 215,935.56, 297,984.66 and 120,440.10

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Solution

The fourth proportional to 215,935.56, 297,984.66 and 120,440.10 is: 166,203.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,935.56 : 297,984.66 = 120,440.10 : x
  2. Step 2: Convert to fraction form
    215,935.56/297,984.66 = 120,440.10/x
  3. Step 3: Cross multiply
    215,935.56x = 297,984.66 × 120,440.10
  4. Step 4: Simplify right side
    215,935.56x = 35,889,302,248.87
  5. Step 5: Solve for x
    x = 35,889,302,248.87/215,935.56
  6. Step 6: Final answer
    x = 166,203.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.